Much to their disgrace, economists focusing on measures of income inequality bring little light to the issue. Let's look at it.
Income is a result of something. As such, results alone cannot establish whether there is fairness or justice. Take a simple example to make the point. Suppose Tom, Dick and Harry play a weekly game of poker. The result is: Tom wins 75 percent of the time. Dick and Harry, respectively, win 15 percent and 10 percent of the time. Knowing only the game's result permits us to say absolutely nothing as to whether there has been poker fairness or justice. Tom's disproportionate winnings are consistent with his being either an astute player or a clever cheater.
To determine whether there has been poker justice, the game's process must be examined. Process questions we might ask are: Were Hoyle's rules obeyed; were the cards unmarked; were the cards dealt from the top of the deck; and did the players play voluntarily? If these questions yield affirmative answers, there was poker fairness and justice, regardless of the game's result, even with Tom's winning 75 percent of the time.
Similarly, income is a result of something. In a free society, for the most part, income is a result of one's capacity to serve his fellow man and the value his fellow man places on that service. Say I mow your lawn and you pay me $50. That $50 might be seen as a certificate of performance. Why? It serves as evidence that I served my fellow man and enables me to make a claim on what he produces when I visit the grocer. Google founders Sergey Brin and Larry Page are multibillionaires. Just as in the case of my serving my fellow man by mowing his lawn, they served their fellow man. The difference is they served many more of their fellow men and did so far more effectively than I and hence have received many more "certificates of performance," which enables them to make greater claims on what their fellow man produces, such as big houses, cars and jets.
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